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Code of Federal Regulations (Last Updated: May 6, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter C - Air Programs |
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Part 89 - Control of Emissions from New and in-Use Nonroad Compression-Ignition Engines |
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Subpart D - Emission Test Equipment Provisions |
§ 89.327-96 - Charge cooling.
Latest version.
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For engines with an air-to-air intercooler (or any other low temperature charge air cooling device) between the turbocharger compressor and the intake manifold, follow SAE J1937. This
procedure has been incorporated by reference. See § 89.6. The temperature of the cooling medium and the temperature of the charge air shall be monitored and recorded.